JPS62162485U

JPS62162485U -

Info

Publication number: JPS62162485U
Application number: JP4892386U
Authority: JP
Priority date: 1986-04-03
Filing date: 1986-04-03
Publication date: 1987-10-15

Description

[Brief explanation of the drawing]

第１図は本考案に係るベローズ弁の一実施例を
示す全体の概略断面図、第２図ないし第３図は本
考案の別の実施例を示す要部断面図である。１……ベローズ弁、２……弁本体、２ａ，２ｂ
……流入側および流出側流体通路、３……上蓋、
４……弁軸、５……バルブプラグ、５ａ……シー
ト部（流体制御部）、６……ガイドリング、６ａ
……中央孔、６ｂ……環状溝、７……円柱状胴部
、１０……ベローズ、１１……ベローズ内室、１
２……連通路、１３……封入室、１４……封入液
としての圧縮性流体、１５……カバーリング。 FIG. 1 is an overall schematic sectional view showing one embodiment of a bellows valve according to the present invention, and FIGS. 2 and 3 are sectional views of essential parts showing another embodiment of the present invention. 1... Bellows valve, 2... Valve body, 2a, 2b
...Inflow side and outflow side fluid passage, 3...Top lid,
4... Valve shaft, 5... Valve plug, 5a... Seat part (fluid control part), 6... Guide ring, 6a
... Central hole, 6b ... Annular groove, 7 ... Cylindrical body, 10 ... Bellows, 11 ... Bellows inner chamber, 1
2... Communication path, 13... Sealing chamber, 14... Compressible fluid as a sealed liquid, 15... Covering.

Claims

[Scope of utility model registration request]

A movable end is fitted to a cylindrical body of a valve plug that is externally operated by a valve shaft, and a movable end is fixed to a part of the cylindrical body, and a fixed end is provided on the valve body side that slidably supports the cylindrical body. In a bellows valve comprising a sealing bellows fixed to a guide ring, the cylindrical body of the valve plug and the guide ring communicate with the inner chamber of the bellows, and when the bellows is extended, the inner chamber of the bellows communicates with the inner chamber of the bellows. A bellows valve characterized in that a sealed chamber having a larger rate of change in volume than the chamber is formed, and a compressible fluid is filled and sealed in the sealed chamber and the bellows inner chamber.